Dual-tip pen/marker



FIG. 1 is a lower front left perspective view of a dual-tip pen/marker showing our new design;

FIG. 2 is an exploded upper right perspective view thereof;

FIG. 3 is an upper rear right perspective view of the pen/marker shown in FIG. 1, with the cap removed and placed on the opposite end of the pen/marker;

FIG. 4 is a top plan view of the pen/marker shown in FIG. 1;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a front elevation view thereof;

FIG. 8 is a right elevation view thereof;

FIG. 9 is a rear elevation view thereof;

FIG. 10 is a left side elevation view thereof with the cap removed for convenience of illustration;

FIG. 11 is a front elevation view thereof;

FIG. 12 is a right side elevation view thereof; and,

FIG. 13 is a rear elevation view thereof. 

The ornamental design for a dual-tip pen/marker, as shown and described. 